All the Colors of the Dark is a a film that delivers all the requisite elements of a giallo and then some, with the peak popularity of giallo being combined with the trend in devil worship and witchcraft movies.

Who Saw Her Die? is the rare giallo that attempts this, and the rare one that succeeds, and it is thanks primarily to a committed performance from former James Bond George Lazenby in a role that puts him through an emotional ringer.